Historical multihulls

Discussion in 'Multihulls' started by Gary Baigent, Feb 26, 2012.

  1. oldsailor7
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    oldsailor7 Senior Member

  2. Corley
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    Corley epoxy coated

    Attached Files:

  3. Gary Baigent
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    Gary Baigent Senior Member

  4. redreuben
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    redreuben redreuben

  5. warwick
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    warwick Senior Member

    Thanks Redreuben for the video clip. Verbatim has been one of my favorite trimarans.
  6. boradicus
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    boradicus Senior Member

    Very nice

    That's cool! I love ideas like this one. How do you tack with the sail out like that I wonder?
  7. Corley
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    Corley epoxy coated

    Departure de la route du café 14/10/1995.


    a translate from the site:

    For the transat en double between Le Havre and Cartagena (Colombia), a race of nearly 10 000 kms, the finest multihulls and fastest were this afternoon on the starting line. To the cannon shot at 3 p.m. on a flat sea, 4 favourite multihulls gather to cross the line of departure, driven by a wind of light is from 7 to 8 knots. 1 standings: Primagaz, Banque Populaire, Fujicolor, and Region Haute Normandie. Before heading on to South America, the multihulls have a required course. After 2 hours of racing, Laurent BOURGNON accuses 17 minutes late. Paul VATINE claim: Loïc PEYRON has circumvented a buoy on the wrong side, Fujicolor is forced to make a u-turn, suddenly Banque Populaire takes orders, Region Haute Normandie slips in 2nd place.
  8. Doug Lord
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    Doug Lord Flight Ready

    Victor T-fastest multihull in 1969

    Lines of Victor T , thanks to Lohring Miller on SA Multihulls. Amazing to me that the L/B ratio on the main hull and ama are close and relatively wide. Victor T was probably the fastest C Class multihull in 1969:
    1) main 13/1
    2) ama 12.8/1

    click--Click once, then expand and click again on the Jack Knights commentary--

    Attached Files:

  9. Gary Baigent
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    Gary Baigent Senior Member

    The Victor T lines are in the inspirational Gougeons' book, chapter 23 on tensioned/compounded ply building.
  10. Ilan Voyager
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    Ilan Voyager Senior Member

    And there not exactly lines; first is the shape of the panel before ploying, the second the profile at the sheer. It's worth to make them at the 1/12 scale in aviation plywood. Very instructive about the ploying process. They didn't exploited all the possibilities of ploying; the technique was pretty young on this size, and naval epoxy was in infancy. The tri Victor T was designed 45 years ago and is amazingly pretty.
  11. upchurchmr
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    upchurchmr Senior Member


    To Echo Gary, the first page you showed is directly out of the Gougeon manual.

    What is a Ploying process?
  12. daveswart
    Joined: Jul 2013
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    daveswart CSK history

    In the beginning...

    Gentlemen - I have recently discovered your forum, and this is my first post. Since this thread is called "Historical Multihulls," I thought you might be interested in some of the stuff I've been collecting over the years. My parents and I were good friends with the Rudy Choy family and CSK catamarans, owning 3 of them over the years. I'd like to start with a historical multihull that I never sailed on myself, but my dad did many times, first in April of 1948.

    Of course I'm talking about Woody Brown's Manu Kai. I believe that she should always be remembered as the boat that started the world of multihull sailing and design as we know it today. Yes there were other catamarans and crude proas before her, but Manu Kai was the first to seriously incorporate thoughtful hull design, aircraft construction technology and Polynesian spirit.

    Her LOA varies, depending on who's measuring, sometimes 40 feet and sometimes 38-6. I believe the outboard rudders and measuring on a slope from the top of the bow could be the difference. Woody called her 40, and crewman Rudy Choy always called her 38-6. She weighed just over 2000 lbs, had a 16" draft, 20:1 hull taper ratio, asymmetric plywood-skinned hulls and a conservative 13 ft. beam.

    She was designed and built by Woody and Alfred Kumalae on the beach just a few miles east of Waikiki Beach at the cost of $4000 in 1947. She is the original Waikiki "beach cat" of tourist thrill-ride fame, and within a few years proved herself seaworthy and fast, in races to Maui and Kauai.

    The attached photos include a rare launching day shot, an early side view, and a nice overhead. You'll notice the outboard rudders, no safety nets, narrow beam and shrouds to the outside of the hull. Rudy Choy's first solo design, Aikane (1956), added safety nets and brought the shrouds inboard.

    I have more info on Manu Kai, but I'm presently looking for more stuff on Woody's other beach cats, Alii Kai and Lio Kai. Anybody?

    Attached Files:

  13. bregalad
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    bregalad Senior Member

    Post whatever you've got. I was fond of Manu Kai when I was building my first boats in the mid 60's. I still like looking at them.
  14. Richard Woods
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    Richard Woods Woods Designs

  15. CT 249
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    CT 249 Senior Member

    I assume you've got Rudy's book on the early days? It's fantastic.
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